A058251 - OEIS

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A058251 as a simple table

n	a(n)
0	1
1	2
2	6
3	120
4	1680
5	36960
6	5765760
7	1568286720
8	536354058240
9	24672286679040
10	2861985254768640
11	2661646286934835200
12	3545312854197200486400
13	5814313080883408797696000
14	10500649424075436288638976000

[1,2,6,120,1680,36960,5765760,1568286720, 536354058240,24672286679040,2861985254768640, 2661646286934835200,3545312854197200486400, 5814313080883408797696000, 10500649424075436288638976000]